The SEO activities optimize your website to achieve higher rankings in the search engine results pages on specific keywords. These activities invite organic traffic to your site. SEO definitely takes a little time, but eventually, it ranks your website on the topmost positions and generates relevant traffic of those searching for your products and services(Pull Marketing).
SEM, on the other hand, comprises SEO along with a variety of paid advertising tactics to enhance the online visibility of your brand on several online platforms. The advertisement tools include Display Ads, Text Ads that attract potential customers to your website who had no formal awareness of your brand.